APA (7th ed.) Citation

Zeiss, C. (1990). Lentes para gafas (3a. ed.). Zeiss.

Chicago Style (17th ed.) Citation

Zeiss, Carl. Lentes Para Gafas. 3a. ed. Oberkochen: Zeiss, 1990.

MLA (9th ed.) Citation

Zeiss, Carl. Lentes Para Gafas. 3a. ed. Zeiss, 1990.

Warning: These citations may not always be 100% accurate.